Heat Bananas and Peanut Butter over MD heat to mix together well. Set aside and cool. Meanwhile, toast oatmeal for about 5 minutes.
Combine banana mixture and oatmeal, peanuts, and 1/2 cup pretzels chopped.
Spread in 9x13 baking dish lined with parchment paper.
Bake 350 for 30 minutes. Cut into 24 squares.